Kreuziger handed provisional doping ban
Czech Republic cyclist Roman Kreuziger during the Tour of Italy cycling race in Sestri Levante on May 17, 2012 - by Luk Benies
"The decision was taken following confirmation received on August 1st, 2014 that Roman Kreuziger intended to participate in the upcoming Tour of Poland and Vuelta a Espana," the UCI said in a statement.
Kreuziger, 28, finished fifth on last year's Tour de France but was told by his team Tinkoff-Saxo that he would not be take part in this year's edition of the race after the problems were initially discovered.
He will now face disciplinary proceedings for the anomalies in his biological passport, which relate to the periods between March and August 2011 and April 2012 until the end of that year's Giro d'Italia.
At that time he was riding for the Kazakh team Astana.
Tinkoff-Saxo said that Kreuziger "will remain suspended from all racing until a verdict has been reached."
However, they added: "Tinkoff-Saxo cannot avoid criticizing the timing of this decision -– as the rider and team was notified less than 24 hours before the start of the Tour of Poland.
"The team notes that this materially impairs its participation in this important race and that Kreuziger receives his provisional suspension without solid evidence of any wrongdoing but only based on the opinion of medical experts of the UCI Anti-doping Commission."